* {
  margin: 0;
  padding: 0;
}

body {
  height: 100vh;
  background-color: #000;
}

.box {
  width: 800px;
  height: 100%;
  border: 1px solid white;
  margin: 0 auto;
  position: relative;
}

.number {
  color: #fff;
  position: absolute;
  z-index: 1;
  width: 200px;
  height: 200px;
  line-height: 200px;
  text-align: center;
  font-size: 30px;
  left: 50%;
  top: 25%;
  margin-left: -100px;
}

.contrast {
  width: 100%;
  height: 100%;
  background-color: #000;
  position: relative;
  border: 1px solid red;
  filter: contrast(15);
  -webkit-animation: hueRotate 2.5s linear infinite;
          animation: hueRotate 2.5s linear infinite;
}

.circle {
  width: 300px;
  height: 300px;
  position: absolute;
  top: 20%;
  left: 50%;
  margin-left: -150px;
  filter: blur(8px);
  -webkit-animation: circleRotate 5s linear infinite;
          animation: circleRotate 5s linear infinite;
}
.circle::before {
  content: "";
  width: 200px;
  height: 200px;
  background-color: cyan;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 42% 38% 63% 49%/45%;
}
.circle::after {
  content: "";
  width: 178px;
  height: 178px;
  background-color: #000;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}

.bubble-home {
  width: 100px;
  height: 40px;
  background-color: cyan;
  position: absolute;
  left: 50%;
  bottom: 0;
  margin-left: -50px;
  border-radius: 100px 100px 0 0;
  filter: blur(8px);
}

.bubble {
  width: 20px;
  height: 20px;
  background-color: cyan;
  border-radius: 100%;
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  z-index: 2;
  filter: blur(5px);
  -webkit-animation: bubbleUp 5s ease-in-out infinite;
          animation: bubbleUp 5s ease-in-out infinite;
}
.bubble:nth-child(1) {
  -webkit-animation-duration: 5s;
          animation-duration: 5s;
  -webkit-animation-delay: 1s;
          animation-delay: 1s;
}
.bubble:nth-child(2) {
  -webkit-animation-duration: 5s;
          animation-duration: 5s;
  -webkit-animation-delay: 2s;
          animation-delay: 2s;
}
.bubble:nth-child(3) {
  -webkit-animation-duration: 5s;
          animation-duration: 5s;
  -webkit-animation-delay: 3s;
          animation-delay: 3s;
}
.bubble:nth-child(4) {
  -webkit-animation-duration: 5s;
          animation-duration: 5s;
  -webkit-animation-delay: 4s;
          animation-delay: 4s;
}
.bubble:nth-child(5) {
  -webkit-animation-duration: 5s;
          animation-duration: 5s;
  -webkit-animation-delay: 5s;
          animation-delay: 5s;
}

@-webkit-keyframes hueRotate {
  0% {
    filter: contrast(15) hue-rotate(0);
  }
  100% {
    filter: contrast(15) hue-rotate(360deg);
  }
}

@keyframes hueRotate {
  0% {
    filter: contrast(15) hue-rotate(0);
  }
  100% {
    filter: contrast(15) hue-rotate(360deg);
  }
}
@-webkit-keyframes circleRotate {
  0% {
    transform: rotate(0);
  }
  100% {
    transform: rotate(360deg);
  }
}
@keyframes circleRotate {
  0% {
    transform: rotate(0);
  }
  100% {
    transform: rotate(360deg);
  }
}
@-webkit-keyframes bubbleUp {
  0% {
    bottom: 0;
  }
  80% {
    opacity: 1;
  }
  100% {
    bottom: calc(80% - 260px);
    opacity: 0;
  }
}
@keyframes bubbleUp {
  0% {
    bottom: 0;
  }
  80% {
    opacity: 1;
  }
  100% {
    bottom: calc(80% - 260px);
    opacity: 0;
  }
}/*# sourceMappingURL=index.css.map */